1. Development of ChemFET chemical field-effect transistors
At the initiative of P. Bergveld in the 1970s, the MOSFET transistor was adapted to liquid-phase detection, leading to the concept of the ChemFET (chemical field effect transistor) or ISFET (ion-sensitive field effect transistor)
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To achieve this, the metal gate electrode (G ) is replaced by an ion-sensitive insulator, and the gate is electrically biased through an electrolyte via a reference electrode (figure
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Development of ChemFET chemical field-effect transistors
Bibliography
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(1) - BERGVELD (P.) -
Development of an ion-sensitive solid-state device for neurophysiological measurements.
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IEEE Transactions on Biomedical Engineering, BME-17, p. 102-105 (1970).
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(2) - SKOTNICKI (T.) -
Transistor...
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